Price History for 1 in. 350 Double Check Backflow Preventer
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1 in. 350 Double Check Backflow Preventer
The 1 in. 350 Double Check Valve Assembly is used in low health hazard, non-potable water applications for protection against both back siphonage and backpressure of polluted water. A favorite for irrigation co
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Price History Chart
Recorded price history
Showing the 30 most recent of 64 recorded prices.
| Date | Price |
|---|---|
| Aug 13, 2026 | $294.62 |
| Aug 12, 2026 | $328.63 |
| Aug 11, 2026 | $328.73 |
| Aug 9, 2026 | $330.25 |
| Aug 3, 2026 | $330.69 |
| Aug 2, 2026 | $330.95 |
| Jul 31, 2026 | $331.01 |
| Jul 29, 2026 | $331.25 |
| Jul 27, 2026 | $331.53 |
| Jul 24, 2026 | $332.05 |
| Jul 23, 2026 | $332.41 |
| Jul 16, 2026 | $332.57 |
| Jul 11, 2026 | $332.67 |
| Jul 10, 2026 | $332.73 |
| Jul 3, 2026 | $332.87 |
| Jul 2, 2026 | $248.97 |
| Jun 27, 2026 | $249.21 |
| Jun 26, 2026 | $249.25 |
| Jun 14, 2026 | $249.27 |
| Jun 10, 2026 | $248.89 |
| Jun 8, 2026 | $249.21 |
| Jun 7, 2026 | $248.95 |
| Jun 5, 2026 | $248.89 |
| May 19, 2026 | $249.41 |
| May 16, 2026 | $250.69 |
| May 14, 2026 | $252.25 |
| May 11, 2026 | $253.95 |
| May 9, 2026 | $255.29 |
| May 7, 2026 | $256.91 |
| May 6, 2026 | $258.61 |
Analysis
1 in. 350 Double Check Backflow Preventer price analysis
Price analysis for 1 in. 350 Double Check Backflow Preventer at Home Depot: Today's price is $294.62. Current price is 1% below the 90-day average of $298.96 (a $4.34 below the running mean).
- Currently listed at $294.62, which is $30.60 above the original MSRP of $264.02.
- Current price is 1% below the 90-day average of $298.96 (a $4.34 below the running mean).
- The lowest recorded price on PriceWatchPro was $233.93 on March 2, 2026. That's $60.69 below today's price.
- The highest recorded price on PriceWatchPro was $349.99 on February 19, 2026. Today's price is $55.37 below that peak.
- 30-day trend: trending down 11.4% from $332.57 to $294.62.
- Across 63 tracked price changes, the listing has dropped 34 times with an average drop of $10.78.
- PriceWatchPro has been tracking this listing since November 20, 2025 (267 days of price history).
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Snapshot
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